James explains that the favoritism is a form of error, a sin, and a violation of the love of charity: "But if you show favoritism, you sin and are convicted by the law as lawbreakers" James 2:9
The love of charity, also known as Agape, is the love perfected by the nature of the good, the love projected to the whole creation of God, our neighbor matters. Agape is progressive, expansive, edifying, benevolent. This love is according to the faith a perfection, a spiritual gift.
Charity does not favoritism, charity makes no distinction between rich and poor, between the talented and the humble: "So the last will be first, and the first will be last" Matthew 20:16. In charity and the life in common, leading means setting always the example and not demanding the follower, which the leader cannot do first.
When we practice favoritism we are violators of the law, which means that we are outside the communion, that is to say that we are "excommunicated", outside the ethical social order. The communion is how God desires men to live: "All the believers were one in heart and mind. No one claimed that any of their possessions was their own, but they shared everything they had" Acts 4:3.
Favoritism and lies divide; love and equality unite. We live according to the flesh or we live according to the spirit, we have to choose, the sin and the righteousness (the golden rule, Matthew 7:12) are pathways. Favoritism is characteristic of those who live according to the flesh:
"For those who live according to the flesh set their minds on the things of the flesh; but those who live according to the spirit, set their minds on the things of the spirit. The mind governed by the flesh is death, but the mind governed by the spirit is life and peace. The mind governed by the flesh is hostile to God; it does not submit to God's law, nor can it do so." Romans 8: 5-7
Falsity underlies favoritism, and therefore the oppression. The most unjust social systems promote favoritism, and where favoritism is most noticeable, something appears, no longer selfish sin, but hateful impiety. Favoritism is directly associated with social hatred, class hatred. That is why Jesus reminds us: "Be merciful, just as your Father is merciful", Luke 6:36
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